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The selection, operation, and maintenance of a reverse osmosis (RO) water purification system should be straightforward. However, systems are often 1) inaccurately specified, i.e., not matched
to the... read more

At Pittcon® 2013, sample prep stood out as a major focus, perhaps because of the few advances in chromatography instrumentation.
In addition, some sample preparation is spilling over into other ... read more

Solid phase extraction, or SPE, is used to isolate pollutants in water and pesticides in food, isolate drugs in blood and tissue samples, and separate proteins from a mixture, among other applications... read more

Samples that contain large amounts of sediment or particulates are difficult to extract using U.S. EPA Method 3535 (SPE, solid-phase extraction). While a standard 47-mm SPE disk is able to process a ... read more

This article is a valuable guide to choosing a rheometer including application, ease of use, configurability, viscosity range, and geometry type. Among the basic types discussed are a rotational ... read more

When Velesco Pharmaceutical Services needed high-purity water for research laboratories at its new facility in Plymouth, MI, it chose a water treatment system that would provide affordable HPLC-grade ... read more